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INSULATING CONNECTION FOR ELECTRIC LIGHT FIXTURES. No. 291,731. Patented Jan. 8, 1884.

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Nrrnn STATES ATENT FFICE.

CHARLES H. HINDS, OF NEW YORK, N. Y.

INSULATING-CONNECTION FOR ELECTRIC-LIGHT FIXTURES.

SPECIFICATION forming part of Letters Patent No. 291,731, dated January 8, 1884.

Application filed June 26, 1883. (No model.)

To all whom, it may concern:

Be it known that I, OHARLEs H. Burns, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Insulating-Connections for ElectricLight Fixtures, of which the following is a specification.

The object of this invention is to insulate an electric light fixture completely from the gas-pipe to which it may be connected in a building, and at the same time to form a firm and safe support. The peculiar and novel construction of my connection is pointed out in the following specification, and illustrated in the accompanying drawings, in which- Figure 1 represents a vertical section in the plane 00 m, Fig. 2. Fig. 2 is a horizontal section in the plane y y, Fig. 1.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates a bracket, which is secured to the ceiling of a building, and forms the connection for the gas and also for the electric-light chandelier,which is suspended from the pipe B. In connections for this purpose, as heretofore constructed, the bracket A is insulated from the pipe B by a short tubular plug, 0, of hard rubber or other insulating material, which at the same time forms the sole connection between said pipe and bracket, so that it has to sustain the entire weight of the chandelier suspended from the pipe B, and the connection is rendered weak and unsafe.

In order to increase the strength and safety of the connection, I have constructed the same as follows: On the screw nipple D of the bracket A, I secure a flange, E, with an internal screw-thread, and within the lower end of this screw-thread I insert the tubular insulating-plug O, which is provided with external screw-thread, a b, at both ends. On the lower screw-thread, b, of the insulating-plug O, I secure the flange F, which is provided with an internal screw-thread to fit the thread I) and to receive the pipe B. The flanges E F are firmly connected by screws 0, (two or more,) and they are insulated from each other by tubular pieces d, of hard rubber or other suitable material, through which the screws 0 pass. By means of the flanges EF, therefore, the weight of the chandelier, which is suspended from the pipe B, is chiefly supported by the screws 0, and the insulating-plug O is entirely or almost entirely relieved from all strain. In fact, the plug 0 can be left out entirely, if desired.

Heretofore, in systems of electric lighting, a gas-pipe has been provided with an insulating-joint between the meter and a point where the main electric conductor is connected with such pipe, so that the gas-pipes are utilized as conductors for the electric current. Itherefore do not wish to be understood as broadly claiming an insulating-joint in a gas-pipe; but

WVhat I claim as new, and desire to secure by Letters Patent, is-

1. In an electric-light chandelier-fixture, the combination of the suspendingbracket A, constructed to be attached to the ceiling, the chandelier suspending pipe B, the screwflanges E and F, the connecting-bolts c, and an insulating material interposed between the flanges, substantially as described.

2. In an electric-light chandelier-fixture, the combination of the suspending-bracket A, constructed to be attached to the ceiling, the chandelier suspending pipe B, the screwflanges E and F, the insulating-plug 0, means for connecting the flanges, and an insulating material arranged between the flanges, substantially as described.

In testimony whereof Ihave hereunto set my hand and seal in the presence of two subscribing witnesses.-

CHARLES H. HINDS. [n s.]

Witnesses:

J. T. DENNIS, J AMEs WYATT, Jr. 

